ATE101899T1 - Hydraulische steuervorrichtung. - Google Patents
Hydraulische steuervorrichtung.Info
- Publication number
- ATE101899T1 ATE101899T1 AT88109858T AT88109858T ATE101899T1 AT E101899 T1 ATE101899 T1 AT E101899T1 AT 88109858 T AT88109858 T AT 88109858T AT 88109858 T AT88109858 T AT 88109858T AT E101899 T1 ATE101899 T1 AT E101899T1
- Authority
- AT
- Austria
- Prior art keywords
- pressure
- control device
- hydraulic control
- distributing valve
- difference
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/321—Directional control characterised by the type of actuation mechanically
- F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
- F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6055—Load sensing circuits having valve means between output member and the load sensing circuit using pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/615—Filtering means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7052—Single-acting output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7135—Combinations of output members of different types, e.g. single-acting cylinders with rotary motors
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Valve Device For Special Equipments (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3722083A DE3722083C1 (de) | 1987-07-03 | 1987-07-03 | Hydraulische Steuervorrichtung |
EP88109858A EP0297401B1 (de) | 1987-07-03 | 1988-06-21 | Hydraulische Steuervorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE101899T1 true ATE101899T1 (de) | 1994-03-15 |
Family
ID=6330891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT88109858T ATE101899T1 (de) | 1987-07-03 | 1988-06-21 | Hydraulische steuervorrichtung. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4879945A (de) |
EP (1) | EP0297401B1 (de) |
JP (1) | JPS6426002A (de) |
AT (1) | ATE101899T1 (de) |
DE (2) | DE3722083C1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3807583C1 (de) * | 1988-03-08 | 1989-03-09 | Heilmeier & Weinlein Fabrik Fuer Oel-Hydraulik Gmbh & Co Kg, 8000 Muenchen, De | |
US4986071A (en) * | 1989-06-05 | 1991-01-22 | Komatsu Dresser Company | Fast response load sense control system |
US5081839A (en) * | 1990-01-29 | 1992-01-21 | Caterpillar Inc. | Pressure compensated hydraulic system |
SE469485B (sv) * | 1991-11-29 | 1993-07-12 | Jan Lindholm | Foerfarande och floedesregleringsventilaggregat foer floedesbalansering |
GB2501486A (en) * | 2012-04-24 | 2013-10-30 | Jc Bamford Excavators Ltd | Work machine having a hydraulic system comprising variable orifice ratios |
CN103754798B (zh) * | 2014-02-19 | 2017-06-20 | 上海梯佑叉车有限公司 | 一种半电动自升高装卸车 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3411295A (en) * | 1967-05-31 | 1968-11-19 | Gen Signal Corp | Hydraulic supply systems |
US3815477A (en) * | 1973-02-06 | 1974-06-11 | Cross Mfg Inc | Control valve instrumentality |
US3971216A (en) * | 1974-06-19 | 1976-07-27 | The Scott & Fetzer Company | Load responsive system with synthetic signal |
DE2457451A1 (de) * | 1974-12-05 | 1976-06-10 | Bosch Gmbh Robert | Hydraulische steuereinrichtung |
DE2601484C2 (de) * | 1976-01-16 | 1984-07-26 | Robert Bosch Gmbh, 7000 Stuttgart | Steuereinrichtung für mindestens zwei von einer Druckmittelquelle gespeiste hydraulische Verbraucher |
DE2804045A1 (de) * | 1978-01-31 | 1979-08-09 | Bosch Gmbh Robert | Steuervorrichtung fuer einen hydraulisch betriebenen verbraucher |
EP0167818B1 (de) * | 1984-07-10 | 1988-06-01 | Robert Bosch Gmbh | Hydraulische Steuereinrichtung |
DE3425303A1 (de) * | 1984-07-10 | 1986-01-23 | Robert Bosch Gmbh, 7000 Stuttgart | Hydraulische steuereinrichtung |
DK154169C (da) * | 1984-10-03 | 1989-03-20 | Danfoss As | Styreindretning for en hydraulisk drevet forbruger |
DE3532816A1 (de) * | 1985-09-13 | 1987-03-26 | Rexroth Mannesmann Gmbh | Steueranordnung fuer mindestens zwei von mindestens einer pumpe gespeiste hydraulische verbraucher |
DE3611244A1 (de) * | 1986-04-04 | 1987-10-08 | Rexroth Mannesmann Gmbh | Stromregelventil |
-
1987
- 1987-07-03 DE DE3722083A patent/DE3722083C1/de not_active Expired
-
1988
- 1988-06-21 AT AT88109858T patent/ATE101899T1/de not_active IP Right Cessation
- 1988-06-21 DE DE88109858T patent/DE3887932D1/de not_active Expired - Fee Related
- 1988-06-21 EP EP88109858A patent/EP0297401B1/de not_active Expired - Lifetime
- 1988-07-04 JP JP63166645A patent/JPS6426002A/ja active Pending
- 1988-07-05 US US07/215,061 patent/US4879945A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0297401A3 (de) | 1991-03-13 |
EP0297401A2 (de) | 1989-01-04 |
DE3887932D1 (de) | 1994-03-31 |
JPS6426002A (en) | 1989-01-27 |
US4879945A (en) | 1989-11-14 |
DE3722083C1 (de) | 1988-09-15 |
EP0297401B1 (de) | 1994-02-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |